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This lens is dust and moisture-resistant and designed for use in the harsh shooting conditions of professional use. In addition, the operational feeling of the zoom ring and focus ring improve the overall handling of the lens.

2. Flare and ghosting conscious design

From an early stage, flare and ghosting are thoroughly measured to establish the design which is resistant to strong incident light such as backlight. Sigmaâ€™s Super Multi-Layer Coating reduces flare and ghosting, and provides high contrast images even in backlit conditions.

3. Hyper Sonic Motor (HSM) is incorporated

The lens incorporates HSM (Hyper Sonic Motor) ensuring high speed and quiet AF as well as full-time manual focus override by rotation of the focus ring.

4. Rounded diaphragm

The rounded 9 blade diaphragm creates a n a ttractive blur to the out of focus areas.

5. Convenient handling

The overall length of the lens does not change during focusing and zooming, ensuring convenient han-dling. The inner focusing system also eliminates front lens rotation, making the lens particularly suitable for using circular polarizing filters. A removable tripod collar is included as a standard component.